Winder drive



WINDER DRIVE Filed 1928 2 Sheets-Sheet l INVENTOR. I BLy/ Q 77785 W! it PLF (A '53 Io A TTORNEYK J. w. COREY WINDER DRIVE July 9, 19298 File Jan- 1928 2 Sheets-Sheet INVENTOR. W COWQy A TTORNEY6 Patented July 9, 1929.

UNITED STATES PATENT OFFICE.

JAMES .W. COREY, 0F CLEVELAND. lHIIEIIIG'LH'IIS, OHIO, AS SI GNOR TO THE RELIANCE ELECTRIC AND ENGINEERING COMPANY, OF (1LEV'IFLLAIN'D, OHIO, A CORPORATION OF OHIO.

WIN DER DRIVE.

I In the winding of rolls of web material, as

textiles and pa-per, especially paper, it has order .to prevent improper tension at 'any' given point and consequent failure to secure a well wound roll, the tendency being either to pronounced looseness on the one hand or over tension with possible tearing of the paperor the like on the other hand. Even with the best supervision available, the loss in imperfect and damaged winding has been quite considerable. A winder drive equipment capable of inherently taking care of the proper differentials of tension and capable of turning out uniformly well wound rolls with substantial absence of damage-loss, without requiring specificand detailed supervision by skilled operatives is accordingly highly desirable.

To the accomplishment of the foregoing and related ends, the invention, then, con-' sists of the features hereinafter fully described, and particularly pointed out in the claims, the following description and the annexed drawings setting forth in detail certain structure embodying the invention, such being illustrative however of buta few of the various ways in which'the principle of the invention 'inay be employed.

'In said annexed drawings Fig. 1 represents a plan View of a winder layout in accordance with the invention, portions being broken away; Fig. 2 is a diagrammatic view, showing more particularly the detail of the wiring connections; and Fig. 3 is a similar iew of a modification.

Referring 'more particularly to the drawings, there is shown pairs of cylinders or drums 1, 2, and 1, 2', these being mounted on horizontalaxes, and each pair forming a sort of trough in which a winding core and roll R of the web material is adapted to be received.' Each such cylinder or drum has its own drive motor, M M M,, M,, respectively. The motors are geared to the drum shafts in suitable reduction ratio. In ad Vance of the first pair of drums in thepath of the web of paper or the like is a cutter or slitter S, preferablya rotary disk cutter carried by shaft 4 which is driven through reduction gearing 5 b a motor 6. I w

The control or the respective motors embodies a system in which a difierential rate of drive may be consistently had in accordance with the diflerence in individual tension requirements, and supplying also driving electromotive force to the slitter motor selectively so that such motor is put into drive before the drum motors start and is maintained in operation until after the drum motors are stopped. Such operation of the slitter makes possible a clean-cut action at the slitting point and prevents drawing and tearing which would otherwise occur if certain grades of paper for instance were pulled against the disk when not rotating. The drum drive motors are compound wound, the armature-driving E. M. F. coming from a source of supply, for instance a generator G; the slitter motor being likewise fed from the same source. cordance with the wiring illustrated in Fig. 2, the circuit for the slitter motor 6 includes the lines 7 and 8, a contact 9 and switch arm 10. The circuit for the drum drive-motors M M M- M includes the lines 7 and 11, and the contact segment 12 and switch arm 10. The slitter motor 6 is also in on this circuit 7, 11, 12, 10, at such times as the arm 10 is on the segment 12. The shunt windings of the motors are supplied from a source of current, preferably a generator E, the circuit including lines "13 and 14, and a rheostat 15 with arm 16. The rheostat 15 is a master control for the field winding F G of generator G. Byvarying the field strength of this enerator, it changes the voltage delivere the generator to the armatures of thewinder motors and therefore changes the speed of all motors as a unit. 'Each of-the fields F F .F and F f a has an individual rheostat 17 in It will be noticed that in ac- 2. In practice, these arms 10 and 16 are carriedon a' common turn-shaft 18, each arm extending out to the orbit of itsls et of contacts, and being actuable by the knob or handle19. In starting, as the arms are turned up, the controller-arm 10 it will be noticed first encounters'thecontact 9 only, and com pletes the circuit from the source of thecur- 7 through the lines? and 11, thus to supply the dividual' field rheostats thus adjusted, these I drum motors aswell as the slitter motor, and

at the same time the rheostat-arm 16 has advanced to cut out further resistance, such that in the circuits 13, 14, the source of current E may start the drum motors M M,, M,, M,.- The resistance at the entering portion of the rheostat swing is such as to give a very low peripheral speed to the drums. controlled thereby, thus facilitating the threading of the webs for the start of the winding. The individual rheostat 17 is selectively adjusted, the resistance for the field F for instance being set slightly less than that of the field F,, and the resistance for the field F, being slightly less than that for the field F,. Accordingly a well graduatedcompensativedifferential of speed may be provided for the respective second drums, such as to provide an effectively graduated tension. With the inare left alone, and further control of the plant is then had from the main control knob 19, and the speed of the entire set of drum or cylinder motors may be controlled in accordance with the amount of resistance left in ciucuit by the rheostat-arm 16. Correspondingly, as seen, with the movement of the rheostat-arm 16, the controller-arm 10 is in position to maintain the circuits 7, 8, through the contact segment 12. From the master controller, the rate of wind up may thus be governed in accordance with the need. In stopping the machine, it will be noticed that the controller and rheostat arms are turned back so as to mtei'pose progresslvely in- In the arrangement shown in Fig. 3, sim:

ilar cont-rollerand rheostat-arms 10, 16, are mounted with a common controller knob, the circuit being completed by the controller-arm 10 with the first movement onto the contact 9' whereby to feed the slitter motor 6 from the current-source E through the lines 20, 21, At this stage, the circuit through the lines 22, 23 for the currentrsllpply G to the armatures of the .drum motors is yet open. WVith the further turning up of" the arms 10 and 16, the arm 10 completes the circuitthrough the contact-segment 12 and the lines '22, 23'for the current-supply G to the armatures of the drum motors. In this manner, the'slitteninotor is started before the drum motors, substantially the full voltage of the generator E being available to the slitter motor before a driving supply for the drum motors is had. The threading of the webs and the differential adjustment of the individual rheostats 17 is the same as in the form above described, and the general control of the speed of the'plant is likewise had by the common control knob for the arms 10 and 16. In stopping, the arms are thrown around back, the arm 16 interposing progressively increased resistance and slowing down the drum motors, but the slitter motor 6 it will be noticed, continues to receive substantially full voltage, and is thus maintained in motion, even after the drum motors are stopped. All tearing and damage to the paper or the like on the part of the slitter is thus automatically avoided.

It will thus be seen that the invention provides means by which web material may be successfully divided and wound into rolls, in a manner providing uniformly tensioned wind up throughout, and yet without imposing thenecessity of close operative supervision. One pair, two pairs or more of the cylinder rolls may be thus arranged and driven, the size of the plant in any case de pending upon the number of rolls to be made from the initial web.

Other modes of applying the principle of the invention may be employed, change being made as regards the details disclosed,

provided the means stated in any of the folemployed.

I therefore particularly point out and distinctly claim as my invent1on:

1. In apparatus of the character described, the combination of a rotary cutter adapted to slit a web of material fed therepast, an electric motor for driving said cutter, two pairs of horizontal cylinders, each pair presenting a trough adapted to receive and rotate a winding roll of the web material, an electric motor for each cylinder, and means for supplying current to each motor dif-' ferentially compensative for the draw on the winding roll and supplying current to the cutter-motor to start said motor in advanceof the other motors and stop it subsequently to the other motors, said means including .a generator in connection with the armatures of saidcylinder-drive meters,

another generator for supplying the fields of the said cylinder-drive motors, an individual rhcostat in the field circuit of each of said motors, a group control rheostat, and a se-.

.for supplying current to each motor differentially compensativ'e for the draw on the winding roll and supplying current to the cutter-motor to start said motor in advance of the other motors and stop it subseqluently to the other motors, said means inc uding a source of E. M. F. in common for the armatures of said cylinder-drive motors, an-

other source of E. M. F. for supplying the fields of the said cylinder-drive motors, an

- individual rheostat in the field circuit'of each of said motors, a group control rheostat, and a selective contact and advance for supplying E. M. F. to the cutter-motor.

3. In apparatus of the character'described, the combination ofa rotar cutter adapted to slit a web of material ed therepast, an electric motor for driving said cutter, .two pairs of horizontal cylinders, each pair presenting a trough adapted to receive and rotate a winding'roll of the web material, an

. electric motor for each cylinder, and means for supplying E. M. F. to each motor difierentially compensative for the draw on the winding roll and supplying E. M. F. to the cutter-motor tostart said motor in advance of the other motors and stop it subsequently to the other motors.

4. In apparatus of the character described, the combination of a. cutter adapted to slit a web of material fed therepast, an electric motor for driving said cutter, paired horiweb material, an electric motor for each cylinder, and means for supplyin E. M. F. to said last-mentioned motors di erentially compensatively for draw on the winding roll and supplying-E. M. F. to the cutter motor to start said motor in advance'of the other motors and stop it'subsequently to the other motors, said means including compound windings in the cylinder-drive motors, indi- Stat for a shunt winding of the generator, and means for selectively supplying driving E. M. F. to the cutter motor'before the cylinder-drive motors 'start and after the said motors stop.

5. In apparatus of the character described, the combination of a cutter adapted to slit -a web of material fed therepast, an electric motor for driving said cutter, paired hori 'vidual rheostats, and a group control rheozontal cylinders presenting a trough adapted to receive and rotate a winding roll of the' web material, an electric motor for each cylinder, and means for supplyin E.- M. F. to said last-mentioned motors di erentially compensatively for draw on the winding roll and'supplying E. M. F. to the cutter motor to start said motor in advance of the other motors and stop it subsequently to the other motors.

6. In apparatus of the character described, the combination of a cutter adapted to slit .a web 6i material fed-'therepast, an electric motor, for driving said cutter, means for winding the web material cut thereby, electric 'motor drive means for said winding means, and means coordinated therewith for supplyi E. M. F. to the slitter motor to start sai motor in advance of the winding drive.

7. In apparatus of the character described,

the combination of a positively driven cutter adapted to slit a web of material fed there- 'past, means for winding the web material cut thereby, and means coordinated therewith for starting the cutter before the windi drive. I

gigned by me this 29th day of December,

: zontal cylinders presenting a trough ada ted 1927 to receive and rotate a winding roll o 'the JAMES w. COREY. 

